Apparatus for treating hydrocarbons



Jan. 10, 1928. 3,6555600 G. EGLOFF ET AL APPARATUS FOR TREATING HYDROCARBONS Original File fie 28. 1920 2 Shoots-Sheet l Inventors "Witness 59 7/? afl BJJAM Ol a/ m Jan. 10, 1928. 1,655,600

G. EGLOFi" ET AL APPARATUS FOR TREATING HYDROCARBONS Original Filed June 28, 1920 2 Shuts-sheet 2 Inventors Witness W fl/w I BJ Patented Jan. 10, 1928. I

UNITED STATES 1,655,600 PATENT OFFICE.

GUSTAV EGLOFF AND HARRY P. BENN ER, OF INDEPENDENCE, KANSAS, ASSIGNORS TO UNIVERSAL OIL PRODUCTS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION 01 SOUTH DAKOTA.

APPARATUS FOR TREATING HYIQROCARIBONS.

Application filed June 28, 1920, Serial This invention relates to an apparatus for treating hydrocarbons and refers more particularly to an apparatus for cracking petroleum oils.

Among the objects of the invention are to provide an apparatus in which the oil is constantlyagitating or rotating around a stationary heating element; to provide an apparatus in which the oil is treated in a pair of concentric still members, the inner one of which is rotatably mounted and extends around a central heating element; to provide an apparatus in whichthe oil is caused to constantly pass from the inner to the outer chamber of the still and in which the oil is preferably mechanically agitated at the same time; and in general to provide improvements of the character referred to.

In the drawings:

Fig. 1 is a view partly in vertical section and partly in side elevation of our improved apparatus.

Fig. 1 is a cross sectional view on an enlarged scale of the still with parts broken away.

Fig. 2 is a transverse sectional view taken on line AA of Fig. 1.

Fig. 3 is a transverse sectional view taken on line B- -B of Fig. 1.

Referring to the drawings, 1 designates the gas burner for supplying gas to the annular heating element 2, the latter preferably taking the form of a corrugated pipe and extending in the furnace 3. The member 2 is open at both ends and the gases of combust1on pass through bridge wall 3 provided with suitable perforations (not shown) to the stack 4. The still 5 is suitably supported in the furnace provided with vapor line 6 in which is interposed throttle valve 7. The line 6 is connected at its upper end to the dephlegmator 8' which dephlegmator is provided with baffle members 9. The vapors pass out of the dephlegmator through line 10 provided .with valve 11 to branch 12. Branch 12 connects with condenser coil 14 seated in water condenser box 13. The lower end of the coil is connected to pipe 15 leading to receiver 16. This receiverv has liquid level gauge 17 and pressure gau e24. It is also provided with liquid draw 0 line 18 having throttle valve '19 and with gas outlet 21 having control valve 22.

The charging oil is delivered to the still by No. 392,478. Renewed March 12, 1926.

pump 25. The inlet side of the pump is connected by line 26 to any suitable source of supply and the discharge side of the pump to line 27 is provided with valve 28. Line 27 is connected to line 29 which extends longitudinally through the still. That part of the line 29 which extends through the still is provided throughout its length with a plus rality of perforations along its lower side as shown more clearly in Fig. 1.

A rotatable shell or still member 30 extends longitudinally through the still 5 and concentric with both the still and the heating element 2. The shell member 30 is provided with a series of circumferentially extending paddle members 31 and with a plurality of oil apertures or ports 32. These apertures 32 extend circumferentially of the still throughout the length of the latter as shown more clearly in Fig. 1 and Fig. 3.

Describing the manner of rotating the shell member 30, there is fixed to it at one end a circumferentially extending gear 34 which mesheswith small gears 33' and 33. The gear 33 is driven from pulley 33 connected to any suitable source of motive power (not shown). The other end of the still is provided with similar circumferentially extending gear 34 which meshes with the idler small gears 33'. The arrangement is such that shell member 30 can be constantly rotated while the other portions of the apparatus are in fixed or stationary position.

The liquid residue is drawn 01f through line 35 provided with throttle valve 36. We have provided means for returning the vapors which are condensed in dephlegmator to the still for further treatment. To this end in the lower portion of the dephlegmator is secured-a. right angle annular member 38 above which ismounted and spaced away a baflie member 39. The construction is such that the reflux condensate instead of falling directly back into the pipe 6 will be diverted into the pipe 40 leading to the lower end of the still.

The following operation of the process may be described. Starting with an Oklahoma gas oil of 31 B., the oil in the still may be heated to a temperature of 760 F. and subjected toa vapor pressure of 125 lbs. Fresh oil may be continuously fed into the still if desired. The oil will be kept inconstant agitation by means of the agitators or paddle members 31 and also will be constantly forced through the perforations 32 in the rotating shell. The arrangement is such that all portions of the oil are subjected to a substantially uniform treatment and to rather violent agitation. Inasmuch as the inner shell which is the hottest is constantly rotating the precipitated carbon will be deposited uniformly on the wall of the shell rather than locally on the lower side. This will avoid the formation of so called hot spots. The apparatus should be so constructed that the inner shell can be readily removed and cleaned when necessary. By the use of the central heating tube 2 the maximum eiiiciency and utilization of the heat units is obtained. By means of this process from 65 to 75% of pressure distillate can be produced from gas oil treated which pressure distillate will have a gravity of say 52 B. and will contain 65% or more of gasoline of 56 gravity.

We claim as our invention:

1. In an apparatus for treating Oil, the combination with a centrally disposed heating member, of a perforated annular shell rotatably mounted around the heating member andprovided with a plurality of agitator blades and a second shell extending around said rotatable shell.

2. In an apparatus for treating oil, the combination with a centrally disposed heating member, of an annular rotatable member extending around the heating member and provided with a plurality of agitator blades and a second spaced member surrounding said rotatable still member.

3. In an apparatus for treating oil, the combination with a centrally disposed heating member, of a perforated annular still section adapted to rotate around the heating member and a stationary section extending around said rotatable still section said stationary and rotatable still members communicating, means for introducing oil to the still, and a vapor discharge from the stationary still.

4. In an apparatus for treating oil, the

combination with a centrally disposed heating member, of an annular still section rotatable around the heating section and a second still member extending around rotatable still section, said second still member being stationary, driving means extending therethrough for rotating the inner still member there being' a communication between said rotatable and stationary still members. i 5. In an apparatus for treating oil, the combination with a centrally disposed heating member from which heating gases pass, of an annular still section rotatably mounted around said central heating member, and an outer stationary section surrounding said rotatable section and provid ing a space therebetween for the reception of hydrocarbon oil. I

6. In an apparatus for treating oil, the combination of a centrally disposed heating tube, of a rotating annular member sur rounding said tube and spaced therefrom, means for feeding oil into the space between said member and heating tube, means for r0- tating the member, and an outer still member spaced from the inner still member surrounding the same.

7. In an apparatus .for treating oil, the combination of a centrally disposed heating tube,-of a rotating annular member surrounding said tube and spaced therefrom, means for feeding oil into the space between said member and heating tube, means for rotating the member, and an outer still member spaced from the inner ,still member surrounding the same, said outer still member being stationary, and a vapor discharge leading therefrom.

8. In an apparatus for treating oil, the. combination with a still, a heating member extending longitudinally through the still, an annular member surrounding said heating member and rotatable with respect to said still and heating member.

GUSTAV EGLOFF. HARRY P. BENNER. 

